Asparagus lettuce harvesting integrated device

Abstract

The invention discloses an asparagus lettuce harvesting integrated device which comprises a cam type four-connecting-rod gathering mechanism, a space cam reciprocating cutter mechanism, a reciprocating type chain linkage variable-speed lifting mechanism and a self-adaptive leaf removing mechanism. The cam type four-connecting-rod gathering mechanism and the reciprocating type chain linkage variable-speed lifting mechanism are closely adjacent to each other and are installed on the two sides of the interior of the asparagus lettuce harvesting all-in-one machine respectively, and the space cam reciprocating cutter mechanism is arranged on the lower portion of the cam type four-connecting-rod gathering mechanism and the lower portion of the reciprocating type chain linkage variable-speed lifting mechanism. The self-adaptive leaf removing mechanism is located above the cam type four-connecting-rod gathering mechanism and the reciprocating type chain linkage variable-speed lifting mechanism. The multi-stage transmission device is driven by the motor, and the cam type four-connecting-rod gathering mechanism, the space cam reciprocating cutter mechanism, the reciprocating type chain linkage variable-speed lifting mechanism and the self-adaptive leaf removing mechanism are matched, so that the process of gathering, harvesting, conveying and leaf removing of asparagus lettuce is achieved, the working intensity of related operation can be effectively relieved, and the working efficiency is improved. The asparagus lettuce harvesting efficiency is improved.

Description

Technical field:

[0001] The invention relates to a lettuce harvesting integrated device, which belongs to the field of agricultural mechanical engineering. Background technology:

[0002] Lettuce is a common vegetable with large sales volume and wide planting. At present, lettuce is mostly harvested manually. The process of manual lettuce harvesting includes harvesting, defoliation, and collection. The workflow is cumbersome, inefficient, labor-intensive, and labor-intensive. At the same time, the lettuce stems and leaves are easily damaged during the manual lettuce harvesting process, affecting the quality.

[0003] Therefore, it is necessary to improve the existing technology to solve the shortcomings of the prior art. Summary of the invention:

[0004] The present invention aims to solve the problems existing in the above-mentioned prior art and provides an integrated lettuce harvesting device, which can realize automatic harvesting, thereby effectively improving the efficiency of lettuce harvesting.

[0005] The technical scheme adopted by the present invention includes: a lettuce harvesting integrated device, including a cam-type four-link gathering mechanism, a space cam reciprocating knife mechanism, a reciprocating chain-linked speed-changing lifting mechanism and an adaptive leaf removal mechanism;

[0006] The cam-type four-linkage closing mechanism comprises a shift fork, a cam, a plurality of bearings, a bearing seat, a shift fork connecting rod and a shift fork shaft, wherein the shift fork shaft is vertically mounted on a reciprocating saw support frame through a bearing seat, the cam is coaxial with the shift fork and in contact with each other, the cam and the shift fork are mounted on the shift fork shaft, the shift fork connecting rod is mounted on the shift fork through a bearing, and the bearing is in contact with the cam;

[0007] The spatial cam reciprocating knife mechanism comprises a reciprocating cutting blade, a spatial cam, a first synchronous pulley, a second synchronous pulley, a third synchronous pulley and a fourth synchronous pulley, the spatial cam is mounted on a reciprocating saw support frame, the reciprocating cutting blade is mounted on a groove curve formed on a side surface of the spatial cam through a bearing, the first synchronous pulley is mounted on the driving shaft after contacting with the L-shaped bearing seat, and the second synchronous pulley is mounted on the reciprocating saw support frame after contacting with the spatial cam;

[0008] The reciprocating chain-linked variable speed lifting mechanism comprises a lifting plate, an enclosing wall, a chain, a conveying card pad, a buckle, a first driving sprocket, a second driving sprocket, an 84 series stepping motor and a motor shaft, the third synchronous belt wheel is in contact with the first synchronous belt wheel and is installed on the driving shaft, the fourth synchronous belt wheel is in contact with the 84 series stepping motor and is installed on the motor shaft, the first driving sprocket is installed on the driving shaft, the second driving sprocket is installed on the driven shaft, the chain is installed on the first driving sprocket and the second driving sprocket, the buckle is installed on the chain link, and the conveying card pad is installed on the lower part of the lifting plate;

[0009] The adaptive leaf removal mechanism includes a first light track mounting bracket, a second light track mounting bracket, a first light track, a second light track, a third light track, a fourth light track, a first light track sleeve, a second light track sleeve and a V-shaped collector. The first light track mounting bracket and the second light track mounting bracket are oppositely mounted on the leaf removal bottom plate. The first light track, the second light track, the third light track and the fourth light track are mounted on the first light track mounting bracket and the second light track mounting bracket. The first light track sleeve is mounted on the first light track and the third light track. The second light track sleeve is mounted on the second light track and the fourth light track. Two V-shaped collectors are staggered and contacted up and down and are respectively mounted on the first light track sleeve and the second light track sleeve.

[0010] Furthermore, a fixed base plate is installed on the first optical track sleeve and the second optical track sleeve respectively.

[0011] Furthermore, the first optical track mounting bracket is in the shape of a right-angled trapezoid, and the second optical track mounting bracket is in the shape of a long strip.

[0012] Furthermore, the first optical track sleeve and the second optical track sleeve are in a concave shape.

[0013] Furthermore, it also includes a motor, a worm is installed on the motor, a worm wheel is installed on the fork shaft, and the worm wheel is meshed with the worm.

[0014] Furthermore, it also includes a hook main board, the lifting plate and the enclosed wall are in the shape of a Lello triangle, and the lifting plate is installed on the conveying card pad through the hook main board.

[0015] Furthermore, it also includes a vertical straight rail, and a slider is installed on one side of the conveying card pad, and the slider cooperates with the vertical straight rail.

[0016] Furthermore, the first driving sprocket is installed at one end of the driving shaft and is opposite to the third synchronous pulley.

[0017] Furthermore, the V-shaped collector is composed of two V-shaped plates, and the openings of the two V-shaped plates are installed on the deleafing bottom plate opposite to each other.

[0018] Furthermore, a blade collecting device is installed below the deleafing bottom plate.

[0019] The present invention has the following beneficial effects: the integrated lettuce harvesting device of the present invention drives the multi-stage transmission device through a motor to realize the coordination among the four mechanisms of the cam-type four-link gathering mechanism, the spatial cam reciprocating knife mechanism, the reciprocating chain-linked speed-changing lifting mechanism, and the adaptive leaf removal mechanism, thereby achieving the processes of gathering, harvesting, transmitting, and leaf removal of the lettuce, which can effectively reduce the work intensity of related operations and improve the lettuce harvesting efficiency. Description of the drawings:

[0020] Figure 1 It is a schematic diagram of the lettuce harvesting integrated device of the present invention.

[0021] Figure 2 Another schematic diagram of the integrated lettuce harvesting device of the present invention.

[0022] Figure 3 It is a schematic diagram of a cam-type four-bar retracting mechanism.

[0023] Figure 4 It is a partial schematic diagram of a reciprocating chain-linked speed-changing lifting mechanism.

[0024] Figure 5 This is a schematic diagram of the installation of the shift fork and cam.

[0025] Figure 6 A local schematic diagram of the adaptive leaf removal mechanism. Specific implementation method:

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] The invention discloses an integrated lettuce harvesting device, which comprises a cam-type four-link gathering mechanism, a space cam reciprocating knife mechanism, a reciprocating chain-linked speed-changing lifting mechanism and an adaptive leaf removing mechanism.

[0028] The cam-type four-link gathering mechanism and the reciprocating chain-linked speed-changing lifting mechanism are adjacent to and respectively installed on both sides of the lettuce harvester; the spatial cam reciprocating knife mechanism is at the bottom of the cam-type four-link gathering mechanism and the reciprocating chain-linked speed-changing lifting mechanism; and the adaptive leaf removal mechanism is located above the cam-type four-link gathering mechanism and the reciprocating chain-linked speed-changing lifting mechanism.

[0029] The cam type four-linkage closing mechanism comprises a shift fork 5, a cam 6, a plurality of bearings, a shift fork connecting rod 22 and a shift fork shaft 7, and the shift fork shaft 7 is vertically mounted on a reciprocating saw support frame 23 through a bearing seat (not shown). The four cams 6 are coaxial with and in contact with the four shift forks 5, respectively, the cam 6 and the shift fork 5 are mounted on the shift fork shaft 7, and the shift fork connecting rod 22 is mounted on the shift fork 5 through a bearing 24, and the bearing 24 is in contact with the cam 6.

[0030] The spatial cam reciprocating knife mechanism includes a reciprocating cutting blade 9, a spatial cam 10, a first synchronous pulley 25, a second synchronous pulley 26, a third synchronous pulley 27 and a fourth synchronous pulley 28. The spatial cam 10 is mounted on a reciprocating saw support frame 23. A groove curve (not shown) is formed on the side surface of the spatial cam 10. The reciprocating cutting blade 9 is mounted on the groove curve of the spatial cam 10 through a bearing 24. The first synchronous pulley 25 is mounted on the driving shaft 13 after contacting the L-shaped bearing seat 12, and the second synchronous pulley 26 is mounted on the reciprocating saw support frame 23 after contacting the spatial cam 10.

[0031] The reciprocating chain-linked variable speed lifting mechanism comprises a lifting plate 8, an enclosing wall 4, a chain 14, a conveying card pad 11, a buckle 21, a first driving sprocket 29 and a second driving sprocket 30. The third synchronous pulley 27 is in contact with the first synchronous pulley 25 and is installed on the driving shaft 13, the fourth synchronous pulley 28 is in contact with the 84 series stepping motor 31 and is installed on the motor shaft 32, the first driving sprocket 29 is installed on the driving shaft 13, the second driving sprocket 30 is installed on the driven shaft 16, and the chain 14 is installed on the first driving sprocket 29 and the second driving sprocket 30. The buckle 21 is two "L"-shaped fixing plates, and the buckle 21 is installed on the chain links of the chain 14. The conveying card pad 11 is installed at the lower part of the lifting plate 8.

[0032] The adaptive leaf removal mechanism includes a first optical track mounting bracket 17, a second optical track mounting bracket 3, a first optical track 33, a second optical track 34, a third optical track 35, a fourth optical track 36, a first optical track sleeve 2, a second optical track sleeve 1, a fixed bottom plate 37 and a V-shaped collector 15. The first optical track mounting bracket 17 is in the shape of a right-angled trapezoid, the second optical track mounting bracket 3 is in the shape of a long strip, and the first optical track mounting bracket 17 and the second optical track mounting bracket 3 are installed on the leaf removal bottom plate 38 in opposition. The first optical track 33, the second optical track 34, the third optical track 35, and the fourth optical track 36 are installed on the reserved holes of the first optical track mounting bracket 17 and the second optical track mounting bracket 3. The first optical track sleeve 2 and the second optical track sleeve 1 are in the shape of a concave character. The first optical track sleeve 2 is installed on the first optical track 33 and the third optical track 35 through the reserved holes thereon, and the second optical track sleeve 1 is installed on the second optical track 34 and the fourth optical track 36 through the reserved holes thereon. The two fixed bottom plates 37 are respectively mounted on the first optical track sleeve 2 and the second optical track sleeve 1 , and the two V-shaped collectors 15 are respectively mounted on the first optical track sleeve 2 and the second optical track sleeve 1 in an alternating manner up and down.

[0033] The integrated lettuce harvesting device of the present invention is a box-type structure. A worm gear 19 is installed on the fork shaft 7. The worm gear 19 is meshed with a worm 20 on the motor 39. The forks 5 are installed on the fork shaft 7 at a certain interval.

[0034] The lifting plate 8 and the enclosed wall 4 are in the shape of a Lello triangle, and the lifting plate 8 is installed on the conveying card pad 11 through a hook main board 40. A slide block 41 is installed on one side of the conveying card pad 11, and the slide block 41 cooperates with the vertical linear rail 18.

[0035] The chain 14 is mounted on a first driving sprocket 29 and a second driving sprocket 30 . The first driving sprocket 29 is mounted on one end of the driving shaft 13 and is opposite to the third synchronous pulley 27 .

[0036] The first optical rail mounting bracket 17 is in the shape of a right-angled trapezoid, and the second optical rail mounting bracket 3 is in the shape of a long strip. The first optical rail mounting bracket 17 and the second optical rail mounting bracket 3 are installed oppositely on the defoliation bottom plate 38. The first optical rail 33, the second optical rail 34, the third optical rail 35, and the fourth optical rail 36 are installed between the first optical rail mounting bracket 17 and the second optical rail mounting bracket 3 at a certain interval.

[0037] The V-shaped collector 15 is composed of two V-shaped plates, the openings of the two V-shaped plates are mounted on the deleafing bottom plate 38 opposite to each other, and a blade collecting device 42 is installed below the deleafing bottom plate 38 .

[0038] The working principle of the integrated lettuce harvesting device of the present invention is as follows: through the coordinated operation of the multi-stage transmission system, the mutual cooperation between the four mechanisms of the cam-type four-link gathering mechanism, the space cam reciprocating knife mechanism, the reciprocating chain-linked variable speed lifting mechanism, and the adaptive leaf removal mechanism is realized. The cam-type four-link gathering mechanism is driven by the 84 series stepping motor 31 through the worm gear 19 and the worm 20. The worm 20 drives the worm gear 19 to make the four groups of cams 6 rotate synchronously. The bearing 24 is connected to the fork 5 through the fork connecting rod 22. The cam 6 forms a dynamic gathering of the fork 5 through the contact cooperation with the bearing 24, so that the four fork groups can accurately gather the lettuce. Subsequently, the synchronous pulley system transmits power to the space cam reciprocating knife mechanism. The groove curve on the surface of the space cam 10 is connected to drive the reciprocating cutting blade 9 through the bearing 24 to realize linear reciprocating motion, and the vertical displacement of the lifting mechanism is coordinated to complete the flat cutting of the root of the lettuce. The cut lettuce is taken up by a reciprocating chain-linked variable speed lifting mechanism. The chain system drives the Lelo triangular lifting plate 8 to move vertically along the vertical rail 18 through cooperation with the buckle assembly. When the buckle 21 drives the conveying card pad 11 to rise to the highest point, the conveying card pad 11 is separated from the buckle 21, causing the lifting plate 8 to automatically fall back, forming a circular transmission. At the same time, the adaptive leaf removal mechanism drives the V-shaped collectors 15 staggered up and down to achieve dynamic closure through the multi-stage linkage of the first optical track sleeve 2 and the second optical track sleeve 1. The two V-shaped collectors 15 adaptively adjust the opening and closing angles according to the diameter of the lettuce to complete the leaf removal action. Each mechanism realizes the full process automation of gathering, cutting, conveying, and leaf removal of lettuce through the precise timing cooperation of the synchronous pulley group, sprocket group, worm wheel 19, and worm 20. Compared with the traditional harvesting method, the efficiency is greatly improved and the intensity of manual labor is significantly reduced.

[0039] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A lettuce harvesting device, characterized in that: It includes a cam-type four-link gathering mechanism, a space cam reciprocating knife mechanism, a reciprocating chain-linked speed-changing lifting mechanism, and an adaptive leaf-removing mechanism; The cam-type four-linkage closing mechanism comprises a shift fork (5), a cam (6), a plurality of bearings, a bearing seat, a shift fork connecting rod (22) and a shift fork shaft (7); the shift fork shaft (7) is vertically mounted on a reciprocating saw support frame (23) via a bearing seat; the cam (6) and the shift fork (5) are coaxial and in contact with each other; the cam (6) and the shift fork (5) are mounted on the shift fork shaft (7); the shift fork connecting rod (22) is mounted on the shift fork (5) via a bearing (24); and the bearing (24) is in contact with the cam (6); The spatial cam reciprocating knife mechanism comprises a reciprocating cutting blade (9), a spatial cam (10), a first synchronous belt pulley (25), a second synchronous belt pulley (26), a third synchronous belt pulley (27) and a fourth synchronous belt pulley (28); the spatial cam (10) is mounted on a reciprocating saw support frame (23); the reciprocating cutting blade (9) is mounted on a groove curve formed on a side surface of the spatial cam (10) through a bearing; the first synchronous belt pulley (25) is mounted on a driving shaft (13) after contacting an L-shaped bearing seat (12); the second synchronous belt pulley (26) is mounted on a reciprocating saw support frame (23) after contacting the spatial cam (10); The reciprocating chain-linked variable speed lifting mechanism comprises a lifting plate (8), an enclosing wall (4), a chain (14), a conveying card pad (11), a buckle (21), a first driving sprocket (29), a second driving sprocket (30), an 84 series stepping motor (31) and a motor shaft (32); the third synchronous belt wheel (27) is in contact with the first synchronous belt wheel (25) and is mounted on the driving shaft (13); the fourth synchronous belt wheel (28) is in contact with the 84 series stepping motor (31) and is mounted on the motor shaft (32); the first driving sprocket (29) is mounted on the driving shaft (13); the second driving sprocket (30) is mounted on the driven shaft (16); the chain (14) is mounted on the first driving sprocket (29) and the second driving sprocket (30); the buckle (21) is mounted on the chain link of the chain (14); and the conveying card pad (11) is mounted on the lower part of the lifting plate (8); The adaptive leaf removal mechanism comprises a first optical track mounting bracket (17), a second optical track mounting bracket (3), a first optical track (33), a second optical track (34), a third optical track (35), a fourth optical track (36), a first optical track sleeve (2), a second optical track sleeve (1) and a V-shaped collector (15); the first optical track mounting bracket (17) and the second optical track mounting bracket (3) are mounted on a leaf removal bottom plate (38) in opposition to each other; the first optical track (33), the second optical track (34), the third optical track (35) and the fourth optical track (36) are mounted on the first optical track mounting bracket (17) and the second optical track mounting bracket (3); the first optical track sleeve (2) is mounted on the first optical track (33) and the third optical track (35); the second optical track sleeve (1) is mounted on the second optical track (34) and the fourth optical track (36); and two V-shaped collectors (15) are mounted on the first optical track sleeve (2) and the second optical track sleeve (1) in an up-down staggered manner and in contact with each other.

2. The lettuce harvesting device according to claim 1, characterized in that: A fixed bottom plate (37) is respectively installed on the first optical track sleeve (2) and the second optical track sleeve (1).

3. The lettuce harvesting device according to claim 2, characterized in that: The first optical track mounting bracket (17) is in the shape of a right-angled trapezoid, and the second optical track mounting bracket (3) is in the shape of a long strip.

4. The lettuce harvesting device according to claim 3, characterized in that: The first optical track sleeve (2) and the second optical track sleeve (1) are in a concave shape.

5. The lettuce harvesting device according to claim 4, characterized in that: It also comprises a motor (39), on which a worm (20) is mounted, and on the fork shaft (7) a worm wheel (19) is mounted, and the worm wheel (19) is meshed with the worm (20).

6. The lettuce harvesting device according to claim 5, characterized in that: It also includes a hook main board (40), the lifting plate (8) and the enclosed wall (4) are in the shape of a Lello triangle, and the lifting plate (8) is installed on the conveying card pad (11) through the hook main board (40).

7. The lettuce harvesting device according to claim 6, characterized in that: It also comprises a vertical straight rail (18), and a sliding block (41) is installed on one side of the conveying card pad (11), and the sliding block (41) cooperates with the vertical straight rail (18).

8. The lettuce harvesting device according to claim 7, characterized in that: The first driving sprocket (29) is installed at one end of the driving shaft (13) and is opposite to the third synchronous pulley (27).

9. The lettuce harvesting device according to claim 8, characterized in that: The V-shaped collector (15) is composed of two V-shaped plates, and the openings of the two V-shaped plates are mounted on the deleafing bottom plate (38) opposite to each other.

10. The lettuce harvesting device according to claim 9, characterized in that: A leaf collecting device (42) is installed below the leaf removal bottom plate (38).

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